package goblint

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Static analysis framework for C

Install 

dune-project
 Dependency

goblint.in.tum.de Readme Changelog Edit opam file Versions (9)

Authors

  1. S
    Simmo Saan
  2. M
    Michael Schwarz
  3. J
    Julian Erhard
  4. S
    Sarah Tilscher
  5. K
    Karoliine Holter
  6. R
    Ralf Vogler
  7. K
    Kalmer Apinis
  8. V
    Vesal Vojdani

Maintainers

  1. S
    Simmo Saan <simmo.saan@gmail.com>
  2. M
    Michael Schwarz <michael.schwarz93@gmail.com>
  3. K
    Karoliine Holter <karoliine.holter@ut.ee>

Sources

goblint-2.5.0.tbz
sha256=452d8491527aea21f2cbb11defcc14ba0daf9fdb6bdb9fc0af73e56eac57b916
sha512=1993cd45c4c7fe124ca6e157f07d17ec50fab5611b270a434ed1b7fb2910aa85a8e6eaaa77dad770430710aafb2f6d676c774dd33942d921f23e2f9854486551

doc/goblint_cdomain_value/IntDomain/SOverflowUnlifter/index.html

Module IntDomain.SOverflowUnlifter

Parameters

module D : SOverflow

Signature

include B with type int_t = D.int_t with type t = D.t
include Lattice.S with type t = D.t
include Lattice.PO with type t = D.t
include Printable.S with type t = D.t
type t = D.t
val equal : t -> t -> bool
val hash : t -> int
val compare : t -> t -> int
val show : t -> string
val pretty : unit -> t -> Printable.Pretty.doc
val printXml : 'a BatInnerIO.output -> t -> unit
val name : unit -> string
val to_yojson : t -> Yojson.Safe.t
val tag : t -> int

Unique ID, given by HConsed, for context identification in witness

val relift : t -> t
val leq : t -> t -> bool
val pretty_diff : unit -> (t * t) -> Lattice.Pretty.doc

If leq x y = false, then pretty_diff () (x, y) should explain why.

val bot : unit -> t
val is_bot : t -> bool
val top : unit -> t
val is_top : t -> bool
type int_t = D.int_t

Accessing values of the ADT

val bot_of : GoblintCil.Cil.ikind -> t
val top_of : GoblintCil.Cil.ikind -> t
val to_int : t -> int_t option

Return a single integer value if the value is a known constant, otherwise * don't return anything.

val equal_to : int_t -> t -> [ `Eq | `Neq | `Top ]
val to_bool : t -> bool option

Give a boolean interpretation of an abstract value if possible, otherwise * don't return anything.

val to_excl_list : t -> (int_t list * (int64 * int64)) option

Gives a list representation of the excluded values from included range of bits if possible.

val of_excl_list : GoblintCil.Cil.ikind -> int_t list -> t

Creates an exclusion set from a given list of integers.

val is_excl_list : t -> bool

Checks if the element is an exclusion set.

val to_incl_list : t -> int_t list option

Gives a list representation of the included values if possible.

val maximal : t -> int_t option
val minimal : t -> int_t option

Cast

include ArithIkind with type t := t
val rem : GoblintCil.Cil.ikind -> t -> t -> t

Integer remainder: x % y

Comparison operators

val lt : GoblintCil.Cil.ikind -> t -> t -> t

Less than: x < y

val gt : GoblintCil.Cil.ikind -> t -> t -> t

Greater than: x > y

val le : GoblintCil.Cil.ikind -> t -> t -> t

Less than or equal: x <= y

val ge : GoblintCil.Cil.ikind -> t -> t -> t

Greater than or equal: x >= y

val eq : GoblintCil.Cil.ikind -> t -> t -> t

Equal to: x == y

val ne : GoblintCil.Cil.ikind -> t -> t -> t

Not equal to: x != y

Bit operators

val lognot : GoblintCil.Cil.ikind -> t -> t

Bitwise not (one's complement): ~x

val logand : GoblintCil.Cil.ikind -> t -> t -> t

Bitwise and: x & y

val logor : GoblintCil.Cil.ikind -> t -> t -> t

Bitwise or: x | y

val logxor : GoblintCil.Cil.ikind -> t -> t -> t

Bitwise exclusive or: x ^ y

val shift_left : GoblintCil.Cil.ikind -> t -> t -> t

Shifting bits left: x << y

val shift_right : GoblintCil.Cil.ikind -> t -> t -> t

Shifting bits right: x >> y

Logical operators

val c_lognot : GoblintCil.Cil.ikind -> t -> t

Logical not: !x

val c_logand : GoblintCil.Cil.ikind -> t -> t -> t

Logical and: x && y

val c_logor : GoblintCil.Cil.ikind -> t -> t -> t

Logical or: x || y

val add : ?no_ov:bool -> GoblintCil.Cil.ikind -> t -> t -> t
val sub : ?no_ov:bool -> GoblintCil.Cil.ikind -> t -> t -> t
val mul : ?no_ov:bool -> GoblintCil.Cil.ikind -> t -> t -> t
val div : ?no_ov:bool -> GoblintCil.Cil.ikind -> t -> t -> t
val neg : ?no_ov:bool -> GoblintCil.Cil.ikind -> t -> t
val cast_to : ?suppress_ovwarn:bool -> ?torg:GoblintCil.Cil.typ -> ?no_ov:bool -> GoblintCil.Cil.ikind -> t -> t
  • parameter no_ov

    If true, assume no overflow can occur.

val join : GoblintCil.Cil.ikind -> t -> t -> t
val meet : GoblintCil.Cil.ikind -> t -> t -> t
val narrow : GoblintCil.Cil.ikind -> t -> t -> t
val widen : GoblintCil.Cil.ikind -> t -> t -> t
val starting : ?suppress_ovwarn:bool -> GoblintCil.Cil.ikind -> int_t -> t
val ending : ?suppress_ovwarn:bool -> GoblintCil.Cil.ikind -> int_t -> t
val of_int : GoblintCil.Cil.ikind -> int_t -> t

Transform an integer literal to your internal domain representation.

val of_bool : GoblintCil.Cil.ikind -> bool -> t

Transform a known boolean value to the default internal representation. It * should follow C: of_bool true = of_int 1 and of_bool false = of_int 0.

val of_interval : ?suppress_ovwarn:bool -> GoblintCil.Cil.ikind -> (int_t * int_t) -> t
val of_congruence : GoblintCil.Cil.ikind -> (int_t * int_t) -> t
val is_top_of : GoblintCil.Cil.ikind -> t -> bool
val invariant_ikind : GoblintCil.Cil.exp -> GoblintCil.Cil.ikind -> t -> Invariant.t
val refine_with_congruence : GoblintCil.Cil.ikind -> t -> (int_t * int_t) option -> t
val refine_with_interval : GoblintCil.Cil.ikind -> t -> (int_t * int_t) option -> t
val refine_with_excl_list : GoblintCil.Cil.ikind -> t -> (int_t list * (int64 * int64)) option -> t
val refine_with_incl_list : GoblintCil.Cil.ikind -> t -> int_t list option -> t
val project : GoblintCil.Cil.ikind -> PrecisionUtil.int_precision -> t -> t
val arbitrary : GoblintCil.Cil.ikind -> t QCheck.arbitrary